Aquaculture ponds'carbon dynamicsare dominated by physical, chemical and biological transformations in feed and organic and inorganic fertilisation. Increasedfish productionhas been associated with an increase incarbon inputin the form of fish-feed exceeding ponds'metabolic capacity,thereby leading to water quality deteriorating due toan accumulationof organic compounds. Water quality is a major constraint in terms of increasedfish crop density. The most important carbon loss within aproduction system is associated with CO 2 evaporation;this makes aquaculture ponds become carbon footprints instead of carbon sinks. Phytoplankton is the major means of CO 2 retentionas it captures both that produced by the respiration of all organisms within a particularpond and within the atmosphere. Aquaculture production systemsusually have a negativeorganic